Final answer:
The OP order refers to the organizational pattern of a written work, typically including Introduction, Body, Objections, Conclusion, and Review Questions.
Step-by-step explanation:
The OP order refers to the organizational pattern of a written work, which can be broken down under five major headings. In an instructional setting, these categories help structure the delivery of content and ensure that a piece of writing is organized in a logical and impactful manner. The major headings typically include an Introduction, Body (which may have several subheadings related to the key ideas or arguments), Objections or Counterpoints, Conclusion, and Review Questions. For example, in a chapter on writing about literature, you might see headings like Introduction, Character, Plot, Setting and Theme, and Practice. These serve to guide the reader through the structure of the content and help present the material in an organized way.